442123204 has 24 divisors (see below), whose sum is σ = 808371648. Its totient is φ = 211184160.

The previous prime is 442123193. The next prime is 442123207. The reversal of 442123204 is 402321244.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (442123207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84019 + ... + 89125.

It is an arithmetic number, because the mean of its divisors is an integer number (33682152).

Almost surely, 2^442123204 is an apocalyptic number.

It is an amenable number.

442123204 is a deficient number, since it is larger than the sum of its proper divisors (366248444).

442123204 is a wasteful number, since it uses less digits than its factorization.

442123204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6075 (or 6073 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 442123204 is about 21026.7259458053. The cubic root of 442123204 is about 761.8119301731.

Adding to 442123204 its reverse (402321244), we get a palindrome (844444448).

The spelling of 442123204 in words is "four hundred forty-two million, one hundred twenty-three thousand, two hundred four".